Operators Maintenance (Cont)
3-6.1. CHANGE WHEEL AND TIRE ASSEMBLY (CONT).
Some hubs have three bosses added during
manufacture that can interfere with installation of
bolt together wheels. If replacing a split rim wheel,
inspect hub for any bosses that might interfere with
installation of the bolt together wheel.
Axles no. 1 and no. 2 on all vehicles and all axles on
M984A1 are not affected.
On rear tandem axles of all models, except M984A1,
the brake drum may have a boss of different widths
or the same width.
If the width of two bosses on the drum are different,
no rework is required, install spare tire.
If all three bosses are the same size and your spare is
a bolt together wheel spare, stow your spare tire and
use the Limp Home Procedures (para 2-49). Have
mechanic remove and rework hub.